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Full Discussion: Passing arguments to shellcode
Top Forums Programming Passing arguments to shellcode Post 302529026 by Corona688 on Wednesday 8th of June 2011 11:05:48 AM
Old 06-08-2011
Quote:
Originally Posted by image28
Is there any way I could pass arguments to shellcode.
Well, what is it?
Quote:
My goal is to store a program in a image file, and have another program read and run the code with arguments in memory.
Why are you doing this?
Quote:
Currently I can store a program in a image file, then read it back to the hard-drive run it normally then delete it when it's done running, but I'm worried someone could undelete the program.
Ah, so it's an entire executable file? An executable file is not a function. That won't work. Why are you concerned about people undeleting the executables you're hiding in an image file, and not about them undeleting the image file?
Quote:
Tried the following code, the shellcode prints a string in argc < 2 or prints argv[1] if there is an argument. Code bellow.
How did you write this? I have no idea if you should expect this to work or not even if the segment the data in was executable. You need to create an executable segment with mmap(), copy the data in, and run it from there, but beyond that I can't help you.
 

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LEARN ABOUT SUSE

page_util_quote

page_util_quote(n)					      Parser generator tools						page_util_quote(n)

__________________________________________________________________________________________________________________________________________________

NAME

       page_util_quote - page character quoting utilities

SYNOPSIS

       package require page::util::quote  ?0.1?

       package require snit

       ::page::util::quote::unquote char

       ::page::util::quote::quote'tcl char

       ::page::util::quote::quote'tclstr char

       ::page::util::quote::quote'tclcom char

_________________________________________________________________

DESCRIPTION

       This package provides a few utility commands to convert characters into various forms.

API

       ::page::util::quote::unquote char
	      A  character,  as stored in an abstract syntax tree by a PEG processor (See the packages grammar::peg::interpreter, grammar::me, and
	      their relations), i.e. in some quoted form, is converted into the equivalent Tcl character. The character is returned as the  result
	      of the command.

       ::page::util::quote::quote'tcl char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser, will
	      regenerate the character in question and is 7bit ASCII. The string is returned as the result of this command.

       ::page::util::quote::quote'tclstr char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl  parser  and
	      will generate a human readable representation of the character in question.  The string is returned as the result of this command.

	      The  string  does not use any unprintable characters. It may use backslash-quoting. High UTF characters are quoted to avoid problems
	      with the still prevalent ascii terminals. It is assumed that the string will be used in a double-quoted environment.

       ::page::util::quote::quote'tclcom char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser  when
	      used within a Tcl comment. The string is returned as the result of this command.

BUGS, IDEAS, FEEDBACK
       This  document,	will  undoubtedly  contain  bugs  and  other  problems.  Please report such in the category page of the Tcllib SF Trackers
       [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have.

KEYWORDS

       page, parser generator, quoting, text processing

COPYRIGHT

       Copyright (c) 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net>

page									1.0							page_util_quote(n)
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